Appliance for automatically regulating the entrance of fabrics or webs into lapping machines



April 22,1930. E. KLEIN 1,755,826

APPLIANCE FOR AUTOMATICALLY REGULATING THE ENTRANCE OF FABRICS OR WEBS INTO LAPPING MACHINES Filed Dec. 20, 1 927 6 Sheets-Sheet 1 I I I I 46 l l 1 A S t e e h s 6 y E. KLEIN APPLIANCE FOR AUTOMATICALLY REGULATING THE ENTRANCE OF FABRICS OR WEBS INTO LAPPING MACHINES Filed Dec. 20, 1927 Apri Fig,

Apnl 22, 1930. E. KLEIN 1,755,826

APPLIANCE FOR AUTOMATICALLY REGULATING THE ENTRANCE 'OF FABRICS OR WEBS INTO LAPPING MACHINES Filed Dec. 20, 1927 6 Sheets-Sheet 3 & M m

Aprll 22, 1930. E. KLEIN ,7 5,826

APPLIANCE FOR AUTOMATICALLY REGULATING THE ENTRANCE 0F FABRICS 0R WEBS INTO LAPPING MACHINES Filed Dec. 20, 1927 6 Sheets-Sheet 4 E. KLEIN ANCE FOR AUTOMATICALLY REGULATING THE ENTRANCE OF FABRICS OR WEBS INTO LAPPING MACHINES 6 SheetsSheet 5 April 22, 1930.

APPLI Filed Dec. 20, 1927 April 22, 1930. E KLEIN 1,755,326

APPLIANCE FOR AUTOMATIdALLY REGULATING THE ENTRANCE 0F FABRICS OR WEBS INTO LAPPING MACHINES Filed Dec. 20, 1927 6 Sheets-Sheet 6 VII IIIL'I Patented Apr. 2 2, 1930 :"i 3 Q v Heb-trig? fr'iitidm clu t cih foil 'rversing both 34L m a ma e11 i f d'iv movable cable 141:0 the relays to be described hereinafter said cable containin the electric a. 7 r b V wires. The ciimlnand given by the feelingand causing the displacement of the adjusting bars 4 or the' feeling apparatus 7-. Said ad justing bars may for this purpose be arranged for instance in a slide 17 connected with the rod 18 actuate'd'by the driving-device The feeling; apparatus 7 is:-advantageously arrangedwith four rolls running betweenfour guide bars 19 and displaced by the dr1v1ng device 16 by means of the wire-ropes or chains 20. v 9

' For the purpose of'easily inserting the feeling apparatus 7 into the width of the fabric or web it is of advantage to reduce the width 7 of the slidingfaces 12, 13 to a bevelled guide- .or web. 7 I

- The swing-movements of the fe'elingglevers tongue 21', deeply projecting into the fabric 10, 11 of the feeling-apparatus 7 areusedfor "producing the regulatingimpulses; in case the latter are electric currents, it is only-ne'cessary' to provide the feel ng-levers according to the shape shown in Fig. 5 with contacts 22,

in a disengaging manner, work with lower regulating currents, wh1le simultaneously 23 respectively, which are openedor closed during the swinging-movement of the feel ng-levers; According to Fig. 5, it is assumed for instance that the edge 24 of the fabric or web moves backwards and does not contact with the feeling-lever 10, whereas the'other edge 25 of the fabric or web is situated within the plane of the drawingandi'noves back the feeling-lever 11. Therefore, the pair of contacts 22 remains closed by the power of the coiled spring 28, whereas the pair of contacts 23 positively opens itself contrary to the power of the coiled spring 29." The tension of the above are also to be movedby electricity, they can be arranged as auxiliary niotorsrotating in two directions or as attracting magnets acting on the moving bars 18 and 20. However,

. electro-mechanisms, arranged in such a manner that they actonto a source of energyonly excluding noxious mass-effects.

The form of construction of such a driv- V ing-device acting according to the principle of the known friction reversing clutches is rep- I resented in Fig. v6.

,. 1 The shaft 33 of eachfreverslng clutch is driree y. n si t ehettc h 913191?? means of a rope 32; in Fig. 7 the ropes 32 of the reversing clutches 15, 16 may be connected and actuated by a single shaft or they may be connected to separate shafts of the machine, The magnet-casing 35 of the electric clutch is fastened tosaid shaft 33 carrying also the wheel 37 engaging with another wheel 38 V which rotates the magnet-casing 36 fastened levers is sent from the relays to the drivingdevices 15 and 16 to be described hereinafter.

to the shaft 34 of a similar clutch in an inverse direction. If acurrent is supplied to the sliprings 39 or 40 by brush-collectors not shown and the coil 4101' 42-is excited thereby, the armature-disc 43 or 44 rotatably arranged on the shaft 33 or 34 is magnetically attracted and engaged by friction-force with the magnet-casing 35 or 36; said disc partakes together with the small wheel 45 or 46connected with it of the rotations of the shaft 3301' 34. The wheel 47 engaging the small Wheel 4501' 46 is therefore according to the excitation of the one or otherclutch rotated in aright hand or left-hand directioni simultaneously the small wheel 49 connected with the said tary movements are transformed into regulating to and fro movements by the engagement"- of the wheel 49 with; the rod 18 shaped as a rack. The same movement can be given to a chain, in case the small wheel49 is r l c d by a chainwhejel. 1 1

a For completn still providedwhich are joined together on a 7 g the regulating-arrange ,inent two pairs of relays 50, 51 and 52, 53 are of same arrangement and each of them is provided with arcontact a,'which remains closed in case the relay-coil s is without current but is opened if the coil 8 is put under current.

Furthermorma contact I) is provided for each 7 relay, said contact being closedbythe contact 0 in case the coil sis under current,i-but opened if the coil s-is without current.

V The coils s of the pairv of relays 50, 51 are fso switched that they are both supplied with colled springs 28, 29 can be regulated by the currentby the contact 22 of the feeling-apparatus 7, as long as the feeling-lever 10 engages the edge of the fabric or web,said coilcurrent,being however disconnected, if the lever'lO is movedaway from-its support by the edge of the fabric or web andis swung outwardly; The same can also be said of the coils s ofthe pair of'relays 52, 53; both coils are under current until the feeling-lever 11 coils a and m of the electric reversing-clutch-- 15 in sucha manner'that the c il a f th ter is excited if the contact 6- of the relay 50 and the contact a of therelay '52 are closed, Whe e @i ;?9 l-;-EF .Wit r -1m v t'he'fabric or web cannot instantaneously folll'owthe displacement .of the lapping bars,

A 1mg the command not only by correcting the 'fOl which acertaintime will be necessary. 1 Consequently thelapping bars are auto- -1na-ticallydisplaced for a distance longer {than that corresponding to the deviation of t-he'edges of thefabric or web at that time and in consequencev a super-regulation and pendulumv phenomena will take place.

This drawback; can be removed by annulpath of the fabric or web in a right manner,

but by deriving and beginning it by a displacement of the feeling-levers, said displaceedge ofthe fabric or web anddependent on 7 went being introduced transversely. to the the movement of the lapping-bars themselves.

' In this manner the advantage is obtained that the displacement. of the lapping-bars is adjusted in proportion to the deviation of the edges of thefabric or web to be corrected 7 fjand on exceeding said-displacement, for instancein consequence of the inertia of the 7 moved mass, thereversal of the commandwlll [take place at once.

. Instead of displacing the feeling-levers themselves those members acted upon bysaid .levers oan also be displaced in an opposite sense so that the same purpose is obtained as by the displacementrof the feeling-levers.

I As seen from Figs. 8 and 9, the lappingbars lareifastened to a slide 17 movable by the drive-device 15 in the direction of the arrowGO, by means of the rack- 18. Said slide 17. is providedwith lateral teeth engaging the toothed heels 61, 62 and rotating the latter. Said toothed wheels are fastened to the ,vertical shafts63, 64 also carrying the conical .wheels 65, which'are in engagement .withthe-conical wheels: 66 fastened to the .shaftsfil', 68. The feeling apparatus T can,

in caseof. deviations in the Width of the fab- :ric or web, be displaced inthe directionof the arrow 69 along said two shafts each beving' provi ded avith a longitudinal groove,

.whereas the-rotary movement of the shafts mentioned is simultaneously and undisturbedlytransmitted to the threaded spindles 70,

71 arranged with a key and bored centrally.

;- The rotary movement 'of the shafts 67,.

68 istransformed by thethreaded spindles .79., 71 into a reciprocating movement of the guides 72, 73 in which the feeling-levers '10,

11 are-yieldingly arranged. In view of the fact that the spindle is lefthand threaded I and the spindle :71 righthand' threaded, the

' feeling-levers 10, 11 site sense.

are displaced in an oppo- The mode of operation of the form of the deviceshownfin Figs. 8.and 9 is as follows:

i ,-1-'-If-, forinstance, during the slipping of the edges-of-the fabricor web, the feeling-lever 1 11.](Fig. 8) isswung out, whereas the other .ifeeling lever 10 remains-at rest,-,the drivingderic. =1 .is n rte i ed he ek o he with the rack 17 together with the lapping bar 4 is moved in the direction of the arrow 60. The new position of the lapping-bars correcting the run of the fabric or web is represented in Fig 9. For the purpose mentioned in the introductory part of the description of only maintaining the command for such a long period until the lapping-bars 4: have reached the displacement defined by the smaller .or larger deviation of the edges of the fabricor web, the feeling-levers 10, 11

are displaced transversely to the edgesof then the feeling-lever 10 is brought to swing out'by the edge of fabric or web belonging to it, Whereas the lever ll remains at rest.

For the same reason a reversal of the command takes place, as soon as the fabric or web begins to again adjust itself correctly. The lapping-bars 4 willtherefore return to their middle-position proportionately to the equalization which takes place. The return of the lappingbarsto their middle-position takes place, therefore, not at the momentas usual up to now-when the fabric or web begins to overrun inthe other direction its right'position, butimmediately after the fabric or Webbegins to movetowards its right position. The danger of overtaxation and an oscillating movement is thereby avoided.

Instead of displacing the feeling-levers themselves transversely to the edge of the fabric-or web the corresponding countermembers, for instance in the'electric. gearing, the counter-contactsv of the pairs ofcontacts can be displaced for fimshing the regulatingprocedure. An exampleof construction for this purpose is represented in Figs. 10 and 11 whereby it' is assumed that the feelinglevers 74, 75 do not swing out perpendicularly to the face of the fabric or web but in the direction 'of the run of the edges of the fabric or web. Fig. 10 shows the manner in which the command is given by opening the pair ,of contacts 23 and Fig. 11 showshow said comma'nd...is terminated through a repeated closure of'the pair of contacts 23 by moving the counterycontact fastened tothe slide 73.

.IVhat I'claim is: a 1. In apparatus for automatically regulat- I ing the-feeding of fabric or web into lapping machines inorder to ensure the correct positioning ofthe edges of Zad acent layers with respect to each other comprising, a movable .z pmse plm te, a a g a fie ver carried by said carriage 1n position to enarranged to engage the fabric or web, and

7 means controlled by'the movement of said feeling levers for actuating said lapping appliance. I v

3. An apparatus for automatically regulating the feeding of fabric or web into lapping machines in order to ensure the correct positioning, of the edges of adjacent layers With respect to each other comprising, a-movable lapping appliance, a carriage, a feelinglever carried by said carriage in-position to engage the fabric or web, and a reciprocating means controlled by the movement by said feeling lever for actuating said lapping appliance.

4. An apparatus for automatically regulating the feeding of fabric or web into lapping machines in order to ensure the correct positioning of the edges of adjacent layers with respect to each other comprising, a movable lapping appliance, a carriage,a plurality of feeling levers carried by said carriage and arranged to engage the fabric or Web, and

a reciprocating means controlled by the movement by said feeling levers foractuatingsaid lapping appliance.

' 5. An apparatus for automatically'regulating the feeding of fabric or web'into lapping machines in order to ensure the correct positioning of the edges of adjacent layers with respect to each other comprising, a movable lapping appliance, a movable carriage, a plurality of feeding levers carried by said carriage and arranged to engage the fabric or Web, and mechanism controlled by the movement of said feeling levers for actuating the carriage. 5

6. An apparatus'for automatically regulating the feeding of fabric or web into lapping machines in order to ensure the correct posi tioning of the edges of adjacent layers with respect to each other comprising, a movable lapping appliance, a movable carriage, a plurality of feeling levers carried by said carriage and arranged to engage the fabric or web, means controlled by the movement of said feeling levers for actuating said lapping I appliance, and mechanismco'ntrolled by the movement of the feeling levers for actuating I the carriage. g 7. An apparatus for automatically regulating the feeding of fabric or'web into lapping machines in order to ensure the correct positioning of'th'e edges of adjacent layers With respect to each other comprising, a movable lapping, appliance, a movable carriage, a pluralty of feeling levers carried by said carriage and arranged to engage the fabric or Web, a reciprocating means controlled by the V movement by said feeling levers for actuating said lapping appliance, and mechanism controlled by the movement of the feeling levers for actuating the carriage.

8. An apparatus for automatically regulating the feeding of fabric or Web into lapping machines in order to ensure the correct posilapping appliance, a movable carriage, a plurality of feeling levers carried by said carriage in position to engage the fabric or Web, means controlled by the movement of said tioning of the edges of adjacent layers with I respect to each other comprising, a movable feeling levers for actuating said lapping appliance, mechanism controlled by the moves ment of the feeling levers for actuating the carriage, a main driving-shaft, a device driven thereby, said device being arranged to be periodically regulated by the tension of the fabric or web for automatically controlling the movement of the lapping appliance and carriage.

9. An apparatus for automatically regulating the feeding of fabric or Web into lapping V machines in order to ensure the correct positioning of the edges of adjacent layers with v respect to each other comprising, a movable lapping appliance, a carriage, a plurality of feeling levers adjustably mounted in said carriage and arranged to engage the fabric or web, and means controlled by the movement of said feeling levers for actuating said lapping appliance.

In testimony, that I claim the foregoing as my invention, I-have signed my name this 8th day of December, 1927.

EUGEN KLEIN.

CERTIFICATE OF CORRECTION.

Patent No. 1,755, 826,

i EUGEN KLEIN.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as iollows: Page 4, line 124, claim 1, for "In" read "An"; page 5, line 42, claim 5, for "feeding" read "feeling"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oiiice.

Signed and sealed this 29th day of July, A. D. 1930.

Wm. A. Kinnan,

(Seal) Acting Commissioner of Patents.

Granted April 22, 1930, to i 

